The black and white covers with psychedelic backdrop were photographed by Karl Lagerfeld. The models are Maartje Verhoef, Lexi Boling and Sasha Luss. (source)
Click the links to view last year covers featuring Ashleigh Good, Nadja Bender and Cara Delevingne. Click here to view 2012 covers featuring Lindsey Wixson, Edie Campbell, Karlie Kloss and Daria Strokous, here to view 2011 cover featuring Saskia de Brauw, Karmen Pedaru, Abbey Lee Kershaw, Anja Rubik and Stella Tennant. Click here to view 2010 cover with Natasha Poly, and here for 2009 cover with Lara Stone.